There are no kits specific to this model, so you have to custom build something. This said, you could probably find a kit from a place like vintageair.com which can sell you complete generic kits to install. The two hardest parts would be getting the correct brackets to fix the compressor to your engine, getting the correct engine pulley and finding an evaporator box that fits under you dash.
The approach that i used was to search for the original brackets for the compressor and to source an original Borletti evaporator box. Once these pieces are sourced then everything else can and probably should be purchased new including the compressor (Sanden 508), condensor and air filter including all hoses. If you source the original evaporator box then get this pressure tested and have an expansion valve fitted that is suitable to R134a refrigirant.